aboutsummaryrefslogtreecommitdiff
path: root/libgo/go/exec/lp_unix.go
diff options
context:
space:
mode:
Diffstat (limited to 'libgo/go/exec/lp_unix.go')
-rw-r--r--libgo/go/exec/lp_unix.go55
1 files changed, 0 insertions, 55 deletions
diff --git a/libgo/go/exec/lp_unix.go b/libgo/go/exec/lp_unix.go
deleted file mode 100644
index d234641..0000000
--- a/libgo/go/exec/lp_unix.go
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin freebsd linux openbsd
-
-package exec
-
-import (
- "errors"
- "os"
- "strings"
-)
-
-// ErrNotFound is the error resulting if a path search failed to find an executable file.
-var ErrNotFound = errors.New("executable file not found in $PATH")
-
-func findExecutable(file string) error {
- d, err := os.Stat(file)
- if err != nil {
- return err
- }
- if d.IsRegular() && d.Permission()&0111 != 0 {
- return nil
- }
- return os.EPERM
-}
-
-// LookPath searches for an executable binary named file
-// in the directories named by the PATH environment variable.
-// If file contains a slash, it is tried directly and the PATH is not consulted.
-func LookPath(file string) (string, error) {
- // NOTE(rsc): I wish we could use the Plan 9 behavior here
- // (only bypass the path if file begins with / or ./ or ../)
- // but that would not match all the Unix shells.
-
- if strings.Contains(file, "/") {
- err := findExecutable(file)
- if err == nil {
- return file, nil
- }
- return "", &Error{file, err}
- }
- pathenv := os.Getenv("PATH")
- for _, dir := range strings.Split(pathenv, ":") {
- if dir == "" {
- // Unix shell semantics: path element "" means "."
- dir = "."
- }
- if err := findExecutable(dir + "/" + file); err == nil {
- return dir + "/" + file, nil
- }
- }
- return "", &Error{file, ErrNotFound}
-}